CRM migration
Field-level mapping, validation, and rollback between Fergus and Twenty CRM. We move data and schema; workflows are rebuilt natively in Twenty CRM.
Fergus
Source
Twenty CRM
Destination
Compatibility
11 of 12
objects map 1:1 between Fergus and Twenty CRM.
Complexity
BStandard
Timeline
48–72 hours
Overview
Fergus organizes field service operations around Jobs, Quotes, Invoices, and Customers with site-level locations. Twenty CRM uses a People-Companies-Opportunities model with a flexible custom-object layer. The migration translates Fergus Customers into Twenty People (for individual contacts) or Companies (for organization-level records), with site data merged into the company address fields. Fergus Jobs map to Twenty Tasks linked to the parent company or person record, while Fergus Quotes become Twenty Opportunities with amount and stage preserved. Fergus Invoice records have no native equivalent in Twenty's CRM model — FlitStack migrates invoice amounts and status as custom fields on the Opportunity for financial reference, but the invoice itself must be rebuilt in Twenty's financial module or a connected accounting tool. Fergus custom fields require pre-creation in Twenty's Settings → Data Model before the CSV import runs, a constraint that shapes the migration sequencing. FlitStack AI extracts Fergus data via its REST API (100 req/min rate limit), transforms the JSON payloads into Twenty's CSV import format, and loads through Twenty's /import endpoint with batched requests respecting the 200 calls/minute ceiling on Organization-tier instances. Workflows, pricing automation, and supplier integrations do not migrate — FlitStack exports the Fergus workflow definitions as a rebuild reference for Twenty's workflow builder.
Every standard and custom field arrives verified.
AI proposes the map; you confirm before any record moves.
Parent–child, lookups, and ownership stay linked.
Calls, emails, meetings — with original timestamps.
Documents, uploads, and inline notes move with the record.
Why teams make this switch
Leaving
What's pushing teams away
Choosing
What's pulling them in
Object mapping
Each row shows how a Fergus object lands in Twenty CRM, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
Fergus
Customer
Twenty CRM
People
1:1Fergus Customer records with an individual name map directly to Twenty People. Standard fields transferred include first name, last name, email address, phone number, and job title. FlitStack performs deduplication checks to ensure that multiple site contacts existing under one organization do not create duplicate People records in Twenty.
Fergus
Customer
Twenty CRM
Companies
1:manyFergus Customers that represent organizations — identified by having multiple sites or jobs associated with the account — split into Twenty Companies. Individual contact records under that customer become Twenty People linked via companyId. FlitStack resolves this by checking for multiple site records on one Fergus Customer.
Fergus
Site
Twenty CRM
Companies (address fields)
1:1Fergus Site stores location address, contact name, and phone as a separate entity from the Customer record. FlitStack identifies the primary site by usage frequency or customer-set default, then merges its address into the Company record's address fields. Secondary sites attach as additional address Notes labeled with site name, or as a custom Address relation object if your Twenty workspace employs that pattern.
Fergus
Job
Twenty CRM
Tasks
1:1Fergus Job maps to Twenty Task linked to the parent Company or People record. Job title, description, scheduled date, and assigned technician transfer. Fergus job status (Pending, In Progress, Completed) maps to Twenty Task status (To Do, In Progress, Done).
Fergus
Quote
Twenty CRM
Opportunities
1:1Fergus Quote with line items and total amount maps to Twenty Opportunity. The Opportunity Name pulls from the Quote title or related Job name. Quote amount becomes Opportunity.amount, and Quote stage (Draft, Sent, Accepted, Lost) maps to Opportunity.stageName pick-list values.
Fergus
Invoice
Twenty CRM
Opportunity (custom fields)
1:1Fergus Invoice has no direct equivalent in Twenty's standard objects. FlitStack migrates invoice total, balance due, and payment status as custom fields on the linked Opportunity record. The invoice line items become Notes attached to the Opportunity for audit trail purposes.
Fergus
Asset
Twenty CRM
Custom Object (Assets)
1:1Fergus Asset records (equipment, serial numbers, maintenance schedules) migrate to a Twenty custom object named 'Asset'. Fields for asset name, type, serial number, and last service date transfer. The Asset links to the Company record via a relation field created during migration setup.
Fergus
Pricing Tier
Twenty CRM
Custom field on Companies
1:1Fergus Pricing Tiers assign customer-specific material markup percentages and labor rate overrides. FlitStack migrates the assigned tier name as a custom pick-list field (Pricing_Tier__c) on the Twenty Company record. Tier rate tables — the actual percentage markups and rate overrides — require manual rebuild in Twenty's workflow conditions or a connected pricing calculator tool.
Fergus
Supplier
Twenty CRM
Companies (relation)
1:1Fergus Supplier records map to Twenty Companies with a custom 'Supplier' type label. The supplier's contact name, email address, and standard payment terms transfer directly. Supplier Companies link to Purchase Order records via Opportunity or custom object relations for downstream purchasing workflow continuity.
Fergus
Purchase Order
Twenty CRM
Custom Object (Purchase Orders)
1:1Fergus Purchase Orders attach to Jobs and link to Supplier records for material sourcing. FlitStack migrates PO number, total amount, current status, and linked supplier reference to a custom Purchase Order object created in Twenty. PO line items transform into Notes attached to the Purchase Order record for complete audit trail preservation.
Fergus
Attachment / File
Twenty CRM
Notes (with attachment)
1:1Fergus file attachments on Jobs, Quotes, or Invoices are downloaded from storage and re-uploaded to Twenty Notes linked to the parent record. Image files and PDF documents store as attachments within the Note body for native viewing. File size limits imposed by Twenty's storage configuration apply to this migration step.
Fergus
User / Technician
Twenty CRM
WorkspaceMember
1:1Fergus Users and assigned Technicians resolve by email address match against Twenty Workspace Members. Unmatched users are flagged in the migration report before processing — your team must invite them to Twenty first, or FlitStack assigns their records to a designated fallback workspace member.
| Fergus | Twenty CRM | Compatibility | |
|---|---|---|---|
| Customer | People1:1 | Fully supported | |
| Customer | Companies1:many | Fully supported | |
| Site | Companies (address fields)1:1 | Fully supported | |
| Job | Tasks1:1 | Fully supported | |
| Quote | Opportunities1:1 | Fully supported | |
| Invoice | Opportunity (custom fields)1:1 | Fully supported | |
| Asset | Custom Object (Assets)1:1 | Fully supported | |
| Pricing Tier | Custom field on Companies1:1 | Fully supported | |
| Supplier | Companies (relation)1:1 | Fully supported | |
| Purchase Order | Custom Object (Purchase Orders)1:1 | Fully supported | |
| Attachment / File | Notes (with attachment)1:1 | Fully supported | |
| User / Technician | WorkspaceMember1:1 | Fully supported |
Gotchas + challenges
Platform-specific issues from each side, plus the pair-specific challenges that don't show up on either platform's page on its own.
Fergus gotchas
100 req/min API rate limit constrains bulk exports
Customer pricing tier data requires explicit mapping
Quote and invoice warning badges are state-dependent
No documented public schema for custom fields
Job photos and attachments require separate file export
Twenty CRM gotchas
Import order is enforced and critical
Export limited to 20,000 records and visible columns only
Soft-deleted records count toward uniqueness and trigger restores
API rate limits cap at 200 req/min on Organization tier
No native email sequences — follow-up cadences require external tools
Pair-specific challenges
Migration approach
Audit Fergus data and map to Twenty schema
FlitStack connects to Fergus via API using your credentials and extracts the full object inventory: Customers, Sites, Jobs, Quotes, Invoices, Assets, Suppliers, Purchase Orders, and custom fields. We audit record counts, identify duplicate customers across sites, and flag Fergus records with missing email addresses (which block Twenty relation mapping). The output is a data audit report and a mapping document that defines which Fergus objects map to which Twenty objects and which records require manual resolution before migration.
Create Twenty fields and custom objects in Data Model
Before any data lands, FlitStack creates all required fields in Twenty's Settings → Data Model. This includes custom fields for invoice data (Invoice_Number__c, Invoice_Total__c, Balance_Due__c, Invoice_Status__c), custom pick-list values for job and quote status, and the Asset and Purchase Order custom objects. We validate that every Twenty field API name matches the CSV column headers in the import file so no fields are orphaned during the load.
Resolve users and import in dependency order
Twenty requires Companies to exist before People can reference them via companyId, and People before Opportunities can reference them. FlitStack sequences the import: Companies first (from Fergus Customers with organization flag), then People (individual contacts linked by email), then Opportunities (Quotes mapped to deal records with amount and stage), then Tasks (Jobs linked to their parent records). Workspace Members are invited or mapped by email before the People import runs so owner assignment resolves cleanly.
Run sample migration with field-level diff
A representative slice of 100–300 records across all Fergus object types migrates first. FlitStack generates a field-level diff comparing the source Fergus values against the Twenty destination values for every mapped field. You verify that Fergus invoice totals landed in the correct custom Opportunity fields, that Job status values translated correctly through the value mapping table, and that site addresses merged into the Company record as expected. Approval of the sample unlocks the full migration run.
Execute full migration with delta pickup window
The full data load runs against Twenty's import endpoint, batched in 2,000-record segments to respect API rate limits. A delta-pickup window (24–48 hours) captures any Fergus records created or modified during the cutover period so Twenty reflects the final state at go-live. FlitStack generates an audit log of every record operation, and one-click rollback reverts the Twenty workspace to the pre-migration state if reconciliation uncovers unexpected mapping results.
Platform deep dives
Fergus
Source
Strengths
Weaknesses
Twenty CRM
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. 2 of 8 objects need a mapping; the rest are 1:1.
Overall complexity
Standard migration
Derived from compatibility, mapping clarity, API constraints, and data volume across Fergus and Twenty CRM.
Object compatibility
2 of 8 objects need a mapping; the rest are 1:1.
Field mapping clarity
Field mapping is derived from defaults — final spec confirmed during the sample migration.
Timeline complexity
8-object category — typical timelines run 2–7 days end-to-end.
API constraints
Fergus: 100 requests per minute per company, shared across all endpoints.
Data volume sensitivity
Fergus doesn't expose a bulk API — REST + parallelization used for high-volume runs.
Estimator
Rule-based pricing — no per-record fees, no manual quotes. Migrations over 2M records are scoped individually.
Step 1
Pick a category, then your source and destination platforms.
Category
FAQ
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